CN1031528C - Lighting system for spotlights, projectors and enlarging apparatuses - Google Patents

Lighting system for spotlights, projectors and enlarging apparatuses Download PDF

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Publication number
CN1031528C
CN1031528C CN93120764A CN93120764A CN1031528C CN 1031528 C CN1031528 C CN 1031528C CN 93120764 A CN93120764 A CN 93120764A CN 93120764 A CN93120764 A CN 93120764A CN 1031528 C CN1031528 C CN 1031528C
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lens
optical axis
illuminator
plane
mirror
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Expired - Fee Related
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CN93120764A
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CN1089712A (en
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米罗斯拉夫·汉那卡
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/162—Incandescent light sources, e.g. filament or halogen lamps
    • F21S41/168—Incandescent light sources, e.g. filament or halogen lamps having a filament arranged transversally to the optical axis of the illuminating device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/265—Composite lenses; Lenses with a patch-like shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
    • F21S41/334—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors
    • F21S41/336—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors with discontinuity at the junction between adjacent areas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/36—Combinations of two or more separate reflectors
    • F21S41/365—Combinations of two or more separate reflectors successively reflecting the light
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0025—Combination of two or more reflectors for a single light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/09—Optical design with a combination of different curvatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/20—Lighting for medical use
    • F21W2131/202—Lighting for medical use for dentistry

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Projection Apparatus (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

The invention concerns a lighting system for spotlights, for automobile headlights, for medical and industrial spotlights. It consists of the light source (1), particularly the halogen light bulb, auxiliary mirror (2), the main mirror (3), consisting of a system of concave spherical mirrors (31), and a composite lens (4). All of these elements lie on the main optical axis (0). If a system of condensers (5) and an objective (7) is added to the basic part, the system can be used for cinema projectors and slide projectors.

Description

Be used for spotlight, the illuminator of projector and amplifying device
The present invention relates to a kind of spotlight that is used for, the illuminator of projector and amplifying device provides high-intensity even illumination to the given area for set a distance.It is made up of light source, fill-in reflector and main reflective mirror.Another part of this system is a compound lens, comprises a plurality of independent convergent lens of net distribution, and the light of light source is shone the plane of regulation, and these lens form hot spot on this.
Many illuminators are arranged as automobile headlamp.These systems have the continuous paraboloid of the cloche of dispersing element to constitute by having covered usually.Light source is the based on halogen bulb of two filaments; Wherein a filament is used for remote illumination, and another root filament is used for soft lighting, and it has an internal stop to limit sheen Shu Jinhang.
For reducing the vertical dimension of reflector, traditional paraboloid transform the shape of confocal reflector space as, makes this reflector space be divided into a series of parabolic subregions with discrete connection of identical pinpointed focus.The generation that has caused oval dioptric system of the needs that the headlight size reduces again.Its reflector has rotation ellipsoid or the shape of oval ellipsoid more than three.There is the filament of bulb at a focus place in its focus, and at second focus place diaphragm is arranged.The planoconvex spotlight that is arranged on the oval second focus place makes the direction of output light parallel with the optical axis of system.This lens also project to diaphragm on the bright background of reflector.This method is determined the distribution of sheen headlighting.
Owing to be the bulb of a filament, thereby this system can only be used for sheen.Thereby also need a lamp similar or same structure to be used for remote lighting device.This device has very little height, and it is formed on obvious boundary line between bright coniform zone and the dark area, the soft lighting that intensity and uniformity are preferable.Another device with big soft lighting sphere of action has the sort of reflector that is freely formed reflector space, and it is continuous and closed, so that the influence of the glass that reflector is avoided covering, the basic picture of single filament bulb is projected required space.Even without diaphragm, they form the border between details in a play not acted out on stage, but told through dialogues and light field.The size of the light output of this system increases with the effectiveness of reflector with being directly proportional, and it also allows to utilize its underpart, thereby has improved efficient.But also need one to install especially for remote illumination.By using the relevant principle that is freely formed reflector space to realize a kind of oval dioptric projection system of improved lighting device.Ellipsoid originally is transformed into non-diaphragm in the focal plane partly overall area than multiple beam, and reflector is comparatively open at an upper portion thereof and comparatively closed in its underpart.The light output ratio Previous System of this system is much higher.
Similar illuminator can be used for different lighting uses, and for example spotlight is used for dental care in health care service.These systems comprise that most employing based on halogen bulb is as the flat illumination equipment of the known type of light source and the concave mirror of cold emission.Its reflecting part is designed to hot spot is projected compound reflecting mirror on the required plane.
The major defect of present automobile lighting system is the illumination efficiency that it is lower.The vehicles adopt the beam reflected by difform reflective mirror institute, and do not adopt the luminous flux of light source in the dead ahead, thereby normally hypographous.The big problem of another of this lighting apparatus is a glare effect, and this is because the high light of the given light bulb filament of nearly all system just can be seen from the spotlight leading space up to now.Be difficult to obtain existing tangible light and shade edge and have uniform beam intensity again, consequently system is quite complicated.The aerodynamic design that the large-size of these lighting apparatus and the gradient of its cover glass will be suitable for automotive front will become the quite task of difficulty.
The spotlight that is used for dental care has lower illumination efficiency equally.Since the light source outgoing only be mapped to front space, thereby be no.When turning on the light; Light also can arrive patient's eyes and cause undesirable dazzling.Dentist's reflective mirror also can reflect the light of not wanting that various retroreflective regions are come, and observed like this image can be interfered.At some basic intra-operative, for example during preparing corona, the light of metallic reflection forms certain obstacle when perforate of preparing corona and reflecting surface.This makes operation more difficult.Reflector with compound reflecting mirror is bigger comparatively speaking, and when spotlight was adjusted to improper position, dentist's head interdicted light beam at an easy rate and reduced from spotlight and make it to shine light quantity on the desired area of patient body.
If another optical system, convergence yoke is for example mentioned above being added to and above one of the system narrated, formed system can be used for the illumination to primary principal plane, inserts the slip of negative film and positive on this plane.This zone projects on the picture plane by means of object lens.This illuminator mainly is applicable to projector, lantern slide projection's machine and amplifying device.
The large-scale lantern slide projection machine that all band high-intensity light sources are arranged.The different brightness of its structure and light source bring negative influence for the illumination uniformity on incident plane.Thereby this illuminator comprises the optics compound reflecting mirror with composite component, rather than adopts simple convex lens.And between two speculums, be equipped with the intermediate image system that constitutes of plate by two band compound lenses.Usually adopt the cellular convergence yoke of forming by compound lens for large-scale lantern slide.Also have used illuminator to make the compound reflecting mirror cellular.This reflective mirror comprises and places a many suites face reflecting plate on the plane.The shortcoming of these systems is that its size is big, and the optical element of large amount of complex is arranged, and this also makes luminous flux that greater loss is arranged.
Illuminator had both adopted the spherical mirror of band light source in the small-sized lantern slide projection machine, also used the lens convergence yoke of band non-spherical element and temperature filter.It is not good because of circular light beam that the shortcoming of this optical system is that primary principal plane is provided with the rectangle frame of egative film, and this causes the luminous flux loss.The angle of luminous flux also is subjected to the restriction of sphere or the extraneous light that aspheric condenser obtained, thereby this angle can't improve again.
In being mainly used in amateur operator's amplifying device, mainly adopt large-area light source, adopt the opal lamp of band lens convergence yoke specifically, or have the lamp in elliptical reflecting zone.Can also adopt an independent head with itself light source at some amplifying devices to photochrome, normally adopt the band diverging system Halogen lamp LED, be used for adjusting continuously the colour mixture chamber of colour filter and the diaphragm of adjusting density continuously, but the poor efficiency of this system.
Illuminator is subjected to the restriction of above listed shortcoming at present.Main contents of the present invention are that its optical axis is identical with primary optical axis, are positioned with the main reflective mirror of the light source of band fill-in reflector thereon, make its concave reflection surface form the compound reflecting mirror.This compound reflecting mirror is made of a series of sphere concave mirrors, and its sidewall is in contact with one another, and its peak is on the surface, and this surface has the conic section shape of rotation, and non-circular, curve is arranged on meridian plane.There is such focal length in the specific reflection zone of concave mirror and makes them form the optical image of light source at the peak of the corresponding lens of geometry of compound lens with the inclination angle of optical axis, this compound lens comprises the single lens of a plurality of net distribution, and it also is arranged on the primary optical axis.The correlation unit zone of sphere concave mirror is projected on the required hot spot plane.
From the primary optical axis direction see and from the imaginary plane of main shaft quadrature, each sphere concave mirror shape is corresponding with the profile phase on the hot spot plane of projection.The sphere concave mirror also is arranged in each zone.The radius of curvature of these reflective mirrors in a zone all equates, but the radius of curvature of the reflective mirror of zones of different is unequal.
The single lens of compound lens have identical shaped and size, and the shape and size utmost point of they and light source visual field has relation.They also are arranged in each zone, and these zones can distribute by major axes orientation.The radius of curvature of a certain regional lens is different with the radius of curvature of another regional lens.The peak of all lens be arranged at the primary optical axis plane orthogonal in, its optical axis is parallel with primary optical axis.Lens are plano-convexs in this case.For some illuminator, the back side of each certain lenses of compound lens can tilt its optical axis to produce wedge.Can also make the whole back side of compound lens become concavity.Above-described compound lens is another kind of to be arranged and makes the light beam required plane of going directly.
For the projection purpose adopts illuminator, be particularly useful for can increasing convergence yoke in the illuminator under the situation of lantern slide projection's machine and amplifying device, it makes luminous flux arrive the plane of placing lantern slide.
The major advantage of illuminator of the present invention is its illuminating effect, and light beam evenly distributes, and glare effect is less.When this new system being used as direct projection light source (for example being used for automobile headlamp) or medical spotlight or increasing convergence yoke, the native system yardstick is all very little.
Fig. 1 is the schematic diagram of automobile headlamp illuminator.
Fig. 2 is the hot spot that the vehicle telematic headlamp illuminating system obtains than the distal part illumination highway.
Fig. 3 is that automobile sheen headlamp illuminating system is used for highway is carried out soft lighting at the main hot spot of seeing to A.
Fig. 4 is the schematic diagram of the optical system of used spotlight in the health care service.
Fig. 5 is the schematic diagram of the illuminator of large-scale lantern slide projection machine.
Fig. 6 is the schematic diagram of the illuminator of small-sized lantern slide projection machine.
Fig. 7 is the schematic diagram of the illuminator of amplifying device.
Fig. 1 schematically shows the illuminator of the vehicles, especially the automobile headlamp optical system.It comprises light source 1, is the based on halogen bulb of single filament, places on the primary optical axis 0, also arranges to have fill-in reflector 2 on primary optical axis 0.Another part of this system is main reflective mirror 3, its optical axis 0 1Identical with primary optical axis 0.Main reflective mirror is made into the compound reflecting mirror, is formed by the rectangle sphere concave mirror 31 of net distribution.Its sidewall is adjacency tightly mutually, and its peak 32 is in the imaginary plane, forms aspheric curve on meridian plane, and around the optical axis 0 identical with primary optical axis 0 1The rotation symmetry.Another part is a compound lens 4, also places primary optical axis 0 place.It comprises a series of convergent lenses 41, and it has hexagonal shape.Equally, their sidewall adjacency tightly mutually.Its peak 42 is in the common plane with the primary optical axis quadrature, and its rear wall 43 all forms the inclined-plane, so that constitute wedge.All optical axises 40 are all parallel with primary optical axis 0.
Between reflective mirror 3 and compound lens 4, must satisfy a kind of condition, the focus of the focus of lens 41 and sphere concave mirror 31 forms the some net of analogous shape, is mapped to the peak 42 of the lens 41 of how much correspondences after from the light of middle the outgoing of light source 1 from 32 reflections of sphere concave mirror peak.Finish this illuminator by the glass 10 that covers dioptric neutrality.
From the light beam of light source 1 outgoing, comprise from fill-in reflector 2 that reflecting surface reflected was that part of, shine on the reflecting surface of main reflective mirror 3.Its each sphere concave mirror 31 produces the picture of light source 1 at corresponding lens 41 places of compound lens 4, compound lens makes rectangle sphere concave mirror 31 project to hot spot plane 6 with given multiplication factor.Its shape of light shafts by this plane is sphere concave mirror 31 shapes in the main reflective mirror 3.The picture identical with the quantity of sphere concave mirror 31 or lens 41 here assembled.This is to remote headlight and all effective to the sheen headlight.
Can see the hot spot of the remote headlight of car on the highway section 61 among Fig. 2.This state can reach by suitable arrangement is done in the zone, the back side 43 of some certain lenses 41 of compound lens 4.
Fig. 3 illustrates the sheen hot spot.In the middle of this plane, partly coming its hot spot more concentrated outside the drawing compared with the outside.Carrying out proper arrangement by the dorsal area to compound lens 4 also can reach.
The major advantage of this headlamp illuminating system is its light that utilizes main and auxiliary reflective mirror to reflect, and luminous flux suitably is mapped to the regulation zone, and can reach higher illuminating effect.This luminous flux is outgoing on the hot spot direction only, without any disturbing and unnecessary lateral light photograph.In the sheen headlight, realized demarcating very clearly between light field and details in a play not acted out on stage, but told through dialogues and can obtaining preferred hot spot.This headlight also is suitable for railroad vehicle, and wheeled vehicle and military vehicle, this headlight have a kind of special opening that has, and is located at the mechanical diaphragm of the dioptric neutral density glass back of covering, to penetrate according to user's needs and to weaken luminous flux.
In the lighting apparatus of long distance illumination, it is a figure that hot spot is concentrated, and it generally speaking is uniformly, and irrelevant with the shape and the distribution of light source emergent light.Because the specific illumination zone that only is concave mirror is projected onto the hot spot plane, the high brightness of alight bubble filament is not in the aerial image in headlight the place ahead, and therefore the glare effect for cross car or itself just is reduced to floor level.Its outer anterior size of sheen headlight with single filament halogen lamp bubble can be compared with headlight projection system Super-ED.Reduce the light illumination area, when for example adopting gas-discharge lamp, the anterior size of headlight is reduced.The cloche of not dispersing element is an optics neutrality, allows to be added in its inclined plane vertical and level.This helps to solve to whole headlight and to the aerodynamic design of the preceding heat dissipating housing of automobile.
As can be seen from Figure 4 this illuminator is done to change slightly and also be suitable for medical treatment and be particularly useful for dental care.After each lens 41 of the concave mirror 31 of main reflective mirror 3 and compound lens 4 were done suitably to adjust, the whole back side that can make compound lens 4 was the plane.The hot spot plane then is evenly illumination.Reach 125 * 140mm at 900mm apart from its yardstick, this is the best scale of dental care.In this case, obtaining the clear boundary between light field and details in a play not acted out on stage, but told through dialogues, be minimum to patient's glare effect.
Illuminator can also be used for many fields of less dazzle of needs and uniform light flux illumination, for example in the television operations chamber, in photo studio, or as the spotlighting workplace of arenas and film etc., these are local to require in giving set a distance the less and hot spot illumination of dazzles evenly.
If said lighting system adds convergence device, it can also be used for lantern slide projection's machine as shown in Figure 5 or be used to throw the image of large-size.
This illuminator adopts high-pressure discharge lamp as light source 1, also adopts fill-in reflector 2 and middle projector equipment, and it comprises by a series of sphere concave mirror 31 formed main reflective mirrors 3, and the compound lens 4 that comprises a series of lens 41.All these assemblies all are positioned on the primary optical axis 0.The used illuminator of the relation of whole system and each inter-module and automobile headlamp or medical lamp is similar.Just the back side of compound lens 4 being made disperses light.This system links to each other with convergence yoke 5 on placing primary optical axis 0.It comprises two concavees lens, and lens of its back can be changed according to the focal length of used object lens 7.
The light of outgoing and the light that reflected from a plurality of sphere concave mirror 31 central authorities of main reflective mirror 3 afterwards are by a plurality of convex lens 41 of the compound lens of how much corresponding a plurality of band divergent lenses with it in the middle of the light source 1, and by convergence yoke 5, intersect substantially in the middle of hot spot 6 planes, here be equipped with lantern slide, it projects on the imaging plane (not shown) by object lens 7.In this system, by the diameter of the outgoing beam of compound lens 4 outgoing and convergence yoke 5 must be equal to or less than object lens 7 apart from the ratio of the distance of compound lens 4 relative aperture value.The picture that many concave mirrors 31 are arranged is still assembled on hot spot plane 6, and by each lens 41 projections of compound lens 4, the quantity of its quantity and concave mirror 31 or the quantity of lens 41 are identical.This has accomplished actually to utilize whole luminous fluxes, be evenly distributed with the time, and the total length of whole system is shorter.
From Fig. 6 as can be known, this system can be used as small-sized lantern slide projection machine after doing some change.Its design is similar with top described example to narration.But the configuration aspects in main reflective mirror 3, lens 4 and convergence yoke 5 also has some difference.Based on halogen bulb is as light source 1.Main reflective mirror 3 is made up of the rectangle sphere concave mirror 31 of same size, and it is by arranged in a straight line, and the line width between adjacent straight line is a half width of a reflective mirror 31.The geometric center of these reflective mirrors 31 forms a net, and it is similar to how much nets of the lens 41 of compound lens 4.The peak 32 of these sphere concave mirrors 31 is on the aspheric surface, and its optics heart is consistent with geometric center, and these spherical mirrors 31 are arranged on the position of primary optical axis 0 different radii.Simultaneously, these have the same focal length sphere concave mirror 31 and have formed the zone, and the spherical mirror 31 of zones of different has different focal, so that light source 1 is projected the peak 42 of each lens, these lens extend by being in each zone and along the primary optical axis direction.Convergence yoke 5 comprises more multicomponent, and first element is dispersed, and its structure is suitable for main light and intersects at the planar central place of hot spot 6 substantially, and all light beam passes through object lens 7.Next lens can be changed.Projection in the middle of 1 object lens 7 in netting of light source near how much, this geometry net and main reflective mirror 3, and the compound lens in certain surface 4 is the sort of similar, on this surface beam diameter and hot spot plane 6 apart from the ratio of the distance of this light beam near the relative aperture value that is equal to or less than eyepiece 7.
According to above-described solution, no matter the distribution of the field of illumination shape of light source 1 and its glazing how, all can obtain higher luminous flux and illumination uniformly with the lantern slide place that is inserted on the plane of hot spot 6.
As shown in Figure 7, native system almost is consistent with the illuminator of amplifying device that can projection.Concerning lantern slide projection, this system just turns over 90 ° to horizontal plane.Light source 1 is a based on halogen bulb.System also has reflective mirror 8, and it shines on the vertical plane beam steering.The element in the back of lens convergence yoke 5 can be changed according to the type of projection objective 7.A slice black and white or colored magic lantern slip, perhaps a lantern slide in the plane of hot spot 6, have been put.Photochrome places from the nearer position of compound lens 4 with filter 9, will change the filtration of color when inserting filter.By grey filter (not shown) and mechanical diaphragm (not shown), the optical density of white light and colourama obtains adjusting.Main reflective mirror 3 has a reflecting layer, and it allows heat radiation to pass through.
In this example, reach the big light intensity of input power 50W and the even illumination of light, also be very important, especially all the more so for photochrome.Be also advantageous in that this system forms a kind of construction unit, it both can amplify black and white and photochrome with high luminous flux, can also be used for outstanding lantern projection.
The above system provides the more possibility of utilizing this newly designed illuminator, for example is used for professional projection and reprography field.

Claims (10)

1. illuminator that is used for spotlight, projector and amplifying device, provide high strength to throw light on uniformly to the zone of giving the given size of set a distance, it comprises light source, fill-in reflector, main reflective mirror, and have converging optical element, the light of light source outgoing can be shone the compound lens on the regulation plane that forms hot spot, it is characterized in that the reflector space of described main reflective mirror (3) makes the sphere concave mirror (31) of net distribution, its peak 32 is on such surface, this surface has rotation awl cross sectional shape, and its rotating shaft is its optical axis (O 1), in meridional plane, have the shape of non-circular curve, the optical axis (O of described main reflective mirror (3) 1) consistent with primary optical axis (O), on primary optical axis, arrange the center and the fill-in reflector (2) of described light source (1), the specific reflection zone of sphere concave mirror (31) has a focal length, and their optical axis (30) tilts so that the picture of light source is projected peak (42) with how much corresponding lens (41) of compound lens (4), and these certain lenses (41) project the picture of the unit area of sphere concave mirror (31) correspondence of main reflective mirror (3) on the plane of required hot spot (6).
2. illuminator as claimed in claim 1, it is characterized in that when along primary optical axis (O) direction look with from primary optical axis mutually plane orthogonal look, each sphere concave mirror (31) of main reflective mirror (3) is corresponding with the flat shape of hot spot (6), these sphere concave mirrors (31) are by its sidewall adjacency tightly mutually, the shape and the size of the light source picture that the shape of the certain lenses (41) of compound lens (4) and size should be as much as possible form with light source (1) light field and sphere concave mirror (31) are corresponding, make it by these lens (41), these lens sizes are identical, and by sidewall adjacency tightly mutually.
3. illuminator as claimed in claim 1 is characterized in that each spill spherical mirror (31) constitutes some zones, and one group of sphere concave mirror of the same area has the same curvature radius, but different with the radius of curvature of one group of sphere concave mirror in another zone.
4. illuminator as claimed in claim 2 is characterized in that each spill spherical mirror (31) constitutes some zones, and one group of sphere concave mirror of the same area has the same curvature radius, but different with the radius of curvature of one group of sphere concave mirror in another zone.
5. illuminator as claimed in claim 1 is characterized in that lens 41 constitute some zones, and these zones are pressed major axes orientation and distributed, and the radius of curvature of interior each lens 41 in a zone is different with the radius of curvature in other zone.
6. illuminator as claimed in claim 2 is characterized in that lens 41 constitute some zones, and these zones are pressed major axes orientation and distributed, and the radius of curvature of interior each lens 41 in a zone is different with the radius of curvature in other zone.
7. as each described illuminator of claim 1 to 6, the peak (42) that it is characterized in that each lens (41) of compound lens (4) is positioned on the plane, this plane and primary optical axis (O) quadrature, the optical axis (40) of each lens (41) is parallel with this root primary optical axis (O), and each lens (41) are the lens of plano-convex.
8. as each described illuminator of claim 1 to 6, it is characterized in that the back side (43) of each lens (41) of compound lens (4) tilts with respect to its optical axis (40).
9. as each described illuminator of claim 1 to 6, it is characterized in that the back side of compound lens (4) is recessed.
10. as each described illuminator of claim 1 to 6, it is characterized in that a convergence yoke being set in the place ahead on hot spot (6) plane.
CN93120764A 1992-12-21 1993-12-21 Lighting system for spotlights, projectors and enlarging apparatuses Expired - Fee Related CN1031528C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CS923780A CZ378092A3 (en) 1992-12-21 1992-12-21 Lighting system for lighting fittings, projection and enlarging apparatus
CSPV3780-92 1992-12-21

Publications (2)

Publication Number Publication Date
CN1089712A CN1089712A (en) 1994-07-20
CN1031528C true CN1031528C (en) 1996-04-10

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Application Number Title Priority Date Filing Date
CN93120764A Expired - Fee Related CN1031528C (en) 1992-12-21 1993-12-21 Lighting system for spotlights, projectors and enlarging apparatuses

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US (1) US5647664A (en)
EP (1) EP0674757B1 (en)
JP (1) JP2665274B2 (en)
KR (1) KR100204645B1 (en)
CN (1) CN1031528C (en)
AT (1) ATE144607T1 (en)
AU (1) AU679018B2 (en)
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CA (1) CA2147130C (en)
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SK378092A3 (en) 1994-08-10
WO1994015143A1 (en) 1994-07-07
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FI951200A0 (en) 1995-03-15
DE69305654T2 (en) 1997-05-15
CZ278791B6 (en) 1994-06-15
FI107077B (en) 2001-05-31
ATE144607T1 (en) 1996-11-15
US5647664A (en) 1997-07-15
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FI951200A (en) 1995-06-02
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HUT71563A (en) 1995-12-28
CA2147130C (en) 1998-12-15
HU217757B (en) 2000-04-28
CA2147130A1 (en) 1994-07-07
CN1089712A (en) 1994-07-20
EP0674757B1 (en) 1996-10-23
CZ378092A3 (en) 1994-06-15
DK65795A (en) 1995-06-09
SK277928B6 (en) 1995-08-09
EP0674757A1 (en) 1995-10-04
DE69305654D1 (en) 1996-11-28
RU2079044C1 (en) 1997-05-10
RU95113302A (en) 1996-07-27
AU5622194A (en) 1994-07-19
NO950988D0 (en) 1995-03-15
ES2094634T3 (en) 1997-01-16
JP2665274B2 (en) 1997-10-22
NO310254B1 (en) 2001-06-11
SI9300668A (en) 1994-06-30
AU679018B2 (en) 1997-06-19
BR9307682A (en) 1999-08-31
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PL309183A1 (en) 1995-09-18
NO950988L (en) 1995-04-24

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